<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>input标签</title>
        <style>
            .wrapper{
                width: 200px;
                height: 50px;
            }
            .input-outline{
                width: 150px;
                height: 40px;
                outline: none;
            }

        </style>
    </head>
    <body>

        <div class="wrapper">
            <input class="input-outline" type="text">
        </div>
        
    </body>
</html>